Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

NXX: 542

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-542 A Dawson MN HCTRMNXAPS0  1367 FRONTIER COMMUNICATIONS OF MINNESOTA, INC. 626      
320-542 0 Dawson MN HCTRMNXAPS0  1367 FRONTIER COMMUNICATIONS OF MINNESOTA, INC. 626   2016-03-24   
320-542 2 Dawson MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2021-03-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.